|
0
|
1
|
|
|
2 /*
|
|
|
3 * Copyright (C) Igor Sysoev
|
|
|
4 */
|
|
|
5
|
|
|
6
|
|
|
7 #ifndef _NGX_HTTP_REQUEST_H_INCLUDED_
|
|
|
8 #define _NGX_HTTP_REQUEST_H_INCLUDED_
|
|
|
9
|
|
|
10
|
|
|
11 #define NGX_HTTP_DISCARD_BUFFER_SIZE 4096
|
|
|
12 #define NGX_HTTP_LINGERING_BUFFER_SIZE 4096
|
|
|
13
|
|
|
14
|
|
|
15 #define NGX_HTTP_VERSION_9 9
|
|
|
16 #define NGX_HTTP_VERSION_10 1000
|
|
|
17 #define NGX_HTTP_VERSION_11 1001
|
|
|
18
|
|
|
19 #define NGX_HTTP_GET 1
|
|
|
20 #define NGX_HTTP_HEAD 2
|
|
|
21 #define NGX_HTTP_POST 3
|
|
|
22
|
|
|
23 #define NGX_HTTP_CONNECTION_CLOSE 1
|
|
|
24 #define NGX_HTTP_CONNECTION_KEEP_ALIVE 2
|
|
|
25
|
|
|
26
|
|
|
27 #define NGX_NONE 1
|
|
|
28
|
|
|
29
|
|
|
30 #define NGX_HTTP_PARSE_HEADER_DONE 1
|
|
|
31
|
|
|
32 #define NGX_HTTP_CLIENT_ERROR 10
|
|
|
33 #define NGX_HTTP_PARSE_INVALID_METHOD 10
|
|
|
34 #define NGX_HTTP_PARSE_INVALID_REQUEST 11
|
|
|
35 #define NGX_HTTP_PARSE_TOO_LONG_URI 12
|
|
|
36 #define NGX_HTTP_PARSE_INVALID_09_METHOD 13
|
|
|
37
|
|
|
38 #define NGX_HTTP_PARSE_HEADER_ERROR 14
|
|
|
39 #define NGX_HTTP_PARSE_INVALID_HEADER 14
|
|
|
40 #define NGX_HTTP_PARSE_TOO_LONG_HEADER 15
|
|
4
|
41 #define NGX_HTTP_PARSE_NO_HOST_HEADER 16
|
|
|
42 #define NGX_HTTP_PARSE_INVALID_CL_HEADER 17
|
|
|
43 #define NGX_HTTP_PARSE_POST_WO_CL_HEADER 18
|
|
10
|
44
|
|
|
45 #define NGX_HTTP_PARSE_INVALID_HOST 19
|
|
|
46 #define NGX_HTTP_PARSE_HTTP_TO_HTTPS 20
|
|
0
|
47
|
|
|
48
|
|
|
49 #define NGX_HTTP_OK 200
|
|
|
50 #define NGX_HTTP_PARTIAL_CONTENT 206
|
|
|
51
|
|
|
52 #define NGX_HTTP_SPECIAL_RESPONSE 300
|
|
|
53 #define NGX_HTTP_MOVED_PERMANENTLY 301
|
|
|
54 #define NGX_HTTP_MOVED_TEMPORARILY 302
|
|
|
55 #define NGX_HTTP_NOT_MODIFIED 304
|
|
|
56
|
|
|
57 #define NGX_HTTP_BAD_REQUEST 400
|
|
|
58 #define NGX_HTTP_FORBIDDEN 403
|
|
|
59 #define NGX_HTTP_NOT_FOUND 404
|
|
|
60 #define NGX_HTTP_NOT_ALLOWED 405
|
|
|
61 #define NGX_HTTP_REQUEST_TIME_OUT 408
|
|
|
62 #define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413
|
|
|
63 #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414
|
|
|
64 #define NGX_HTTP_RANGE_NOT_SATISFIABLE 416
|
|
|
65
|
|
|
66
|
|
|
67 /* Our own HTTP codes */
|
|
|
68
|
|
|
69 #define NGX_HTTP_NGX_CODES NGX_HTTP_TO_HTTPS
|
|
|
70
|
|
|
71 /*
|
|
|
72 * We use the special code for the plain HTTP requests that are sent to
|
|
|
73 * HTTPS port to distinguish it from 4XX in an error page redirection
|
|
|
74 */
|
|
|
75 #define NGX_HTTP_TO_HTTPS 497
|
|
|
76
|
|
|
77 /*
|
|
|
78 * We use the special code for the requests with invalid host name
|
|
|
79 * to distinguish it from 4XX in an error page redirection
|
|
|
80 */
|
|
|
81 #define NGX_HTTP_INVALID_HOST 498
|
|
|
82
|
|
|
83 /*
|
|
|
84 * HTTP does not define the code for the case when a client closed
|
|
|
85 * the connection while we are processing its request so we introduce
|
|
|
86 * own code to log such situation when a client has closed the connection
|
|
|
87 * before we even try to send the HTTP header to it
|
|
|
88 */
|
|
|
89 #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499
|
|
|
90
|
|
|
91
|
|
|
92 #define NGX_HTTP_INTERNAL_SERVER_ERROR 500
|
|
|
93 #define NGX_HTTP_NOT_IMPLEMENTED 501
|
|
|
94 #define NGX_HTTP_BAD_GATEWAY 502
|
|
|
95 #define NGX_HTTP_SERVICE_UNAVAILABLE 503
|
|
|
96 #define NGX_HTTP_GATEWAY_TIME_OUT 504
|
|
|
97
|
|
|
98
|
|
|
99 typedef enum {
|
|
|
100 NGX_HTTP_RESTRICT_HOST_OFF = 0,
|
|
|
101 NGX_HTTP_RESTRICT_HOST_ON,
|
|
|
102 NGX_HTTP_RESTRICT_HOST_CLOSE
|
|
|
103 } ngx_http_restrict_host_e;
|
|
|
104
|
|
|
105
|
|
|
106 typedef enum {
|
|
|
107 NGX_HTTP_INITING_REQUEST_STATE = 0,
|
|
|
108 NGX_HTTP_READING_REQUEST_STATE,
|
|
|
109 NGX_HTTP_PROCESS_REQUEST_STATE,
|
|
|
110
|
|
|
111 NGX_HTTP_CONNECT_UPSTREAM_STATE,
|
|
|
112 NGX_HTTP_WRITING_UPSTREAM_STATE,
|
|
|
113 NGX_HTTP_READING_UPSTREAM_STATE,
|
|
|
114
|
|
|
115 NGX_HTTP_WRITING_REQUEST_STATE,
|
|
|
116 NGX_HTTP_LINGERING_CLOSE_STATE,
|
|
|
117 NGX_HTTP_KEEPALIVE_STATE
|
|
|
118 } ngx_http_state_e;
|
|
|
119
|
|
|
120
|
|
|
121 typedef struct {
|
|
|
122 ngx_str_t name;
|
|
|
123 ngx_uint_t offset;
|
|
|
124 } ngx_http_header_t;
|
|
|
125
|
|
|
126
|
|
|
127 typedef struct {
|
|
|
128 ngx_list_t headers;
|
|
|
129
|
|
|
130 ngx_table_elt_t *host;
|
|
|
131 ngx_table_elt_t *connection;
|
|
|
132 ngx_table_elt_t *if_modified_since;
|
|
|
133 ngx_table_elt_t *user_agent;
|
|
|
134 ngx_table_elt_t *referer;
|
|
|
135 ngx_table_elt_t *content_length;
|
|
28
|
136 ngx_table_elt_t *content_type;
|
|
0
|
137
|
|
|
138 ngx_table_elt_t *range;
|
|
|
139
|
|
|
140 #if (NGX_HTTP_GZIP)
|
|
|
141 ngx_table_elt_t *accept_encoding;
|
|
|
142 ngx_table_elt_t *via;
|
|
|
143 #endif
|
|
|
144
|
|
|
145 ngx_table_elt_t *authorization;
|
|
|
146
|
|
|
147 ngx_table_elt_t *keep_alive;
|
|
|
148
|
|
|
149 #if (NGX_HTTP_PROXY)
|
|
|
150 ngx_table_elt_t *x_forwarded_for;
|
|
6
|
151 ngx_table_elt_t *x_real_ip;
|
|
|
152 ngx_table_elt_t *x_url;
|
|
0
|
153 #endif
|
|
|
154
|
|
38
|
155 #if (NGX_HTTP_HEADERS)
|
|
|
156 ngx_table_elt_t *accept;
|
|
|
157 ngx_table_elt_t *accept_language;
|
|
|
158 #endif
|
|
|
159
|
|
0
|
160 ngx_array_t cookies;
|
|
|
161
|
|
|
162 size_t host_name_len;
|
|
|
163 ssize_t content_length_n;
|
|
|
164 size_t connection_type;
|
|
|
165 ssize_t keep_alive_n;
|
|
|
166
|
|
|
167 unsigned msie:1;
|
|
|
168 unsigned msie4:1;
|
|
|
169 unsigned opera:1;
|
|
|
170 unsigned gecko:1;
|
|
|
171 unsigned konqueror:1;
|
|
|
172 } ngx_http_headers_in_t;
|
|
|
173
|
|
|
174
|
|
|
175 typedef struct {
|
|
|
176 off_t start;
|
|
|
177 off_t end;
|
|
|
178 ngx_str_t content_range;
|
|
|
179 } ngx_http_range_t;
|
|
|
180
|
|
|
181
|
|
|
182 typedef struct {
|
|
|
183 ngx_list_t headers;
|
|
|
184
|
|
|
185 ngx_uint_t status;
|
|
|
186 ngx_str_t status_line;
|
|
|
187
|
|
|
188 ngx_table_elt_t *server;
|
|
|
189 ngx_table_elt_t *date;
|
|
|
190 ngx_table_elt_t *content_type;
|
|
|
191 ngx_table_elt_t *content_length;
|
|
|
192 ngx_table_elt_t *content_encoding;
|
|
|
193 ngx_table_elt_t *location;
|
|
|
194 ngx_table_elt_t *last_modified;
|
|
|
195 ngx_table_elt_t *content_range;
|
|
|
196 ngx_table_elt_t *accept_ranges;
|
|
|
197 ngx_table_elt_t *expires;
|
|
|
198 ngx_table_elt_t *cache_control;
|
|
|
199 ngx_table_elt_t *etag;
|
|
|
200
|
|
|
201 ngx_str_t charset;
|
|
|
202 ngx_array_t ranges;
|
|
|
203
|
|
|
204 off_t content_length_n;
|
|
|
205 time_t date_time;
|
|
|
206 time_t last_modified_time;
|
|
|
207 } ngx_http_headers_out_t;
|
|
|
208
|
|
|
209
|
|
28
|
210 typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r);
|
|
|
211
|
|
0
|
212 typedef struct {
|
|
28
|
213 ngx_temp_file_t *temp_file;
|
|
|
214 ngx_chain_t *bufs;
|
|
|
215 ngx_buf_t *buf;
|
|
|
216 size_t rest;
|
|
|
217 ngx_http_client_body_handler_pt post_handler;
|
|
0
|
218 } ngx_http_request_body_t;
|
|
|
219
|
|
|
220
|
|
|
221 struct ngx_http_cleanup_s {
|
|
|
222 union {
|
|
|
223 struct {
|
|
|
224 ngx_fd_t fd;
|
|
|
225 u_char *name;
|
|
|
226 } file;
|
|
|
227
|
|
|
228 struct {
|
|
|
229 ngx_http_cache_hash_t *hash;
|
|
18
|
230 ngx_http_cache_entry_t *cache;
|
|
0
|
231 } cache;
|
|
|
232 } data;
|
|
|
233
|
|
|
234 unsigned valid:1;
|
|
|
235 unsigned cache:1;
|
|
|
236 };
|
|
|
237
|
|
|
238
|
|
|
239 typedef struct {
|
|
|
240 ngx_http_request_t *request;
|
|
|
241
|
|
|
242 ngx_buf_t **busy;
|
|
|
243 ngx_int_t nbusy;
|
|
|
244
|
|
|
245 ngx_buf_t **free;
|
|
|
246 ngx_int_t nfree;
|
|
|
247
|
|
|
248 ngx_uint_t pipeline; /* unsigned pipeline:1; */
|
|
|
249 } ngx_http_connection_t;
|
|
|
250
|
|
|
251
|
|
|
252 typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r);
|
|
|
253
|
|
|
254 struct ngx_http_request_s {
|
|
|
255 uint32_t signature; /* "HTTP" */
|
|
|
256
|
|
|
257 ngx_connection_t *connection;
|
|
|
258
|
|
|
259 void **ctx;
|
|
|
260 void **main_conf;
|
|
|
261 void **srv_conf;
|
|
|
262 void **loc_conf;
|
|
|
263
|
|
26
|
264 ngx_http_cache_t *cache;
|
|
0
|
265
|
|
28
|
266 ngx_http_upstream_t *upstream;
|
|
|
267
|
|
0
|
268 ngx_file_t file;
|
|
|
269
|
|
|
270 ngx_pool_t *pool;
|
|
|
271 ngx_buf_t *header_in;
|
|
|
272
|
|
|
273 ngx_http_headers_in_t headers_in;
|
|
|
274 ngx_http_headers_out_t headers_out;
|
|
|
275
|
|
|
276 ngx_http_request_body_t *request_body;
|
|
|
277
|
|
|
278 time_t lingering_time;
|
|
|
279
|
|
|
280 ngx_uint_t method;
|
|
|
281 ngx_uint_t http_version;
|
|
|
282 ngx_uint_t http_major;
|
|
|
283 ngx_uint_t http_minor;
|
|
|
284
|
|
|
285 ngx_str_t request_line;
|
|
|
286 ngx_str_t uri;
|
|
|
287 ngx_str_t args;
|
|
|
288 ngx_str_t exten;
|
|
|
289 ngx_str_t unparsed_uri;
|
|
|
290
|
|
|
291 ngx_str_t method_name;
|
|
28
|
292 ngx_str_t http_protocol;
|
|
0
|
293
|
|
|
294 ngx_http_request_t *main;
|
|
|
295
|
|
|
296 uint32_t in_addr;
|
|
|
297 ngx_uint_t port;
|
|
|
298 ngx_str_t *port_text; /* ":80" */
|
|
6
|
299 ngx_str_t server_name;
|
|
26
|
300 ngx_http_in_addr_t *virtual_names;
|
|
0
|
301
|
|
|
302 ngx_uint_t phase;
|
|
|
303 ngx_int_t phase_handler;
|
|
|
304 ngx_http_handler_pt content_handler;
|
|
|
305
|
|
34
|
306 ngx_uint_t nvariables;
|
|
|
307 void **variables;
|
|
|
308
|
|
0
|
309 ngx_array_t cleanup;
|
|
|
310
|
|
|
311 /* used to learn the Apache compatible response length without a header */
|
|
|
312 size_t header_size;
|
|
|
313
|
|
24
|
314 size_t request_length;
|
|
|
315
|
|
0
|
316 u_char *discarded_buffer;
|
|
|
317 void **err_ctx;
|
|
|
318 ngx_uint_t err_status;
|
|
|
319
|
|
|
320 ngx_http_connection_t *http_connection;
|
|
|
321
|
|
|
322 unsigned http_state:4;
|
|
|
323
|
|
2
|
324 /* URI with "/." and on Win32 with "//" */
|
|
0
|
325 unsigned complex_uri:1;
|
|
34
|
326
|
|
2
|
327 /* URI with "%" */
|
|
|
328 unsigned quoted_uri:1;
|
|
34
|
329
|
|
|
330 /* URI with "+" */
|
|
|
331 unsigned plus_in_uri:1;
|
|
|
332
|
|
38
|
333 /* URI with "\0" or "%00" */
|
|
|
334 unsigned zero_in_uri:1;
|
|
|
335
|
|
34
|
336 unsigned uri_changed:1;
|
|
|
337 unsigned uri_changes:4;
|
|
|
338
|
|
|
339 unsigned low_case_exten:1;
|
|
0
|
340 unsigned header_timeout_set:1;
|
|
|
341
|
|
|
342 unsigned proxy:1;
|
|
|
343 unsigned bypass_cache:1;
|
|
|
344 unsigned no_cache:1;
|
|
|
345
|
|
|
346 #if 0
|
|
|
347 unsigned cachable:1;
|
|
|
348 #endif
|
|
|
349 unsigned pipeline:1;
|
|
|
350
|
|
|
351 unsigned plain_http:1;
|
|
|
352 unsigned chunked:1;
|
|
|
353 unsigned header_only:1;
|
|
|
354 unsigned keepalive:1;
|
|
|
355 unsigned lingering_close:1;
|
|
|
356 unsigned closed:1;
|
|
|
357
|
|
|
358 unsigned filter_need_in_memory:1;
|
|
|
359 unsigned filter_ssi_need_in_memory:1;
|
|
|
360 unsigned filter_need_temporary:1;
|
|
|
361 unsigned filter_allow_ranges:1;
|
|
|
362
|
|
|
363 #if (NGX_STAT_STUB)
|
|
|
364 unsigned stat_reading:1;
|
|
|
365 unsigned stat_writing:1;
|
|
|
366 #endif
|
|
|
367
|
|
|
368 ngx_uint_t headers_n;
|
|
|
369
|
|
|
370 /* used to parse HTTP headers */
|
|
|
371 ngx_uint_t state;
|
|
|
372 u_char *uri_start;
|
|
|
373 u_char *uri_end;
|
|
|
374 u_char *uri_ext;
|
|
|
375 u_char *args_start;
|
|
|
376 u_char *request_start;
|
|
|
377 u_char *request_end;
|
|
|
378 u_char *method_end;
|
|
|
379 u_char *schema_start;
|
|
|
380 u_char *schema_end;
|
|
|
381 u_char *host_start;
|
|
|
382 u_char *host_end;
|
|
|
383 u_char *port_start;
|
|
|
384 u_char *port_end;
|
|
|
385 u_char *header_name_start;
|
|
|
386 u_char *header_name_end;
|
|
|
387 u_char *header_start;
|
|
|
388 u_char *header_end;
|
|
|
389 };
|
|
|
390
|
|
|
391
|
|
|
392 extern ngx_http_header_t ngx_http_headers_in[];
|
|
|
393 extern ngx_http_header_t ngx_http_headers_out[];
|
|
|
394
|
|
|
395
|
|
|
396
|
|
|
397 #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */
|
